Fish Sticks with Broccoli Rice

Name: Fish Sticks with Broccoli Rice
Ingredients: 1 1/4 cups jasmine rice; 1 1-inch piece fresh ginger, peeled and sliced; Kosher salt; 1 small bunch broccoli, cut into small florets (about 4 cups); Vegetable oil, for frying; 1 cup all-purpose flour; 1 tablespoon mustard powder; 1 cup cold seltzer; 1 1/2 pounds center-cut skinless Pacific cod, cut crosswise into 8 strips; 1 to 2 teaspoons toasted sesame oil; 4 scallions, thinly sliced; Sweet Thai chili sauce and lemon wedges, for serving